Bottom wiper



FIG. 1 shows a perspective view of a bottom wiper showing my new design;

FIG. 2 shows a left side view thereof;

FIG. 3 shows a right side view thereof;

FIG. 4 shows a bottom plan view thereof;

FIG. 5 shows a top plan view thereof;

FIG. 6 shows a rear side view thereof; and,

FIG. 7 shows a front side view thereof.

The broken lines shown in the drawings represent environmental effects or potential embodiments and do not form any part of the claimed design. 

CLAIM The ornamental design for a bottom wiper, as shown and described. 